The Baltimore Orioles (71-45) and the Seattle Mariners (63-52) play the middle contest of a 3-game series Saturday at T-Mobile Park. First pitch is scheduled for 9:40 p.m. ET (FS1). Let’s analyze BetMGM Sportsbook’s lines around the Orioles vs. Mariners odds and make our expert MLB picks and predictions for the best bets.
Season series: Tied 2-2
The Orioles were trucked 9-2 in the series opener, losing for the 3rd time in the past 4 games, all against American League West opponents. Baltimore’s pitching has been for the birds lately, coughing up 28 runs across the past 4 outings, or 7.0 runs per game (RPG). The Over is 3-1 in the 4-game span, while cashing in 5 of the past 7 games overall.
The Mariners have racked up 8 straight victories to move to within a half-game of a Wild Card spot in the AL. Pitching has been a major reason for the recent success, allowing 2 or fewer runs in each of the past 5 outings. As a result, it’s no surprise the Under is 4-1 across the 5-game stretch.
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Orioles at Mariners projected starters
LHP Cole Irvin vs. RHP George Kirby
Irvin (1-3, 5.44 ERA) makes his 9th start and 17th overall appearance. He has a 1.50 WHIP, 3.2 BB/9 and 8.3 K/9 in 48 innings.
- Last start: No-decision, 6 1/3 IP, 1 ER, 3 H, 0 BB, 4 K in a 3-1 road win in 10 innings vs. the Minnesota Twins July 7
- 2023 road splits: 0-2, 5.30 ERA (18 2/3 IP, 11 ER – 4 HR), .273 opponent batting average (OBA) in 3 starts and 4 relief appearances
Kirby (10-8, 3.32 ERA) makes his 23rd start. He has a 1.05 WHIP, 0.9 BB/9 and 8.2 K/9 in 135 2/3 innings.
- Last start: Win, 7 IP, 1 ER, 3 H, 0 BB, 5 K in a 3-2 road win vs. the Los Angeles Angels last Saturday
- 2023 home splits: 6-3, 3.26 ERA (66 1/3 IP, 24 ER – 8 HR), .227 opponent batting average (OBA) in 11 starts
- 2023 vs. BAL: Loss, 6 1/3 IP, 3 R (2 ER), 1 BB, 4 K in a 3-2 road loss June 25
Orioles at Mariners odds
Provided by BetMGM Sportsbook; access USA TODAY Sports Scores and Sports Betting Odds hub for a full list. Lines last updated at 7:50 a.m. ET.
- Moneyline (ML): Orioles +135 (bet $100 to win $135) | Mariners -160 (bet $160 to win $100)
- Run line (RL)/Against the spread (ATS): Orioles +1.5 (-155) | Mariners -1.5 (+125)
- Over/Under (O/U): 8 (O: -105 | U: -115)
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Orioles at Mariners picks and predictions
Prediction
Mariners 6, Orioles 3
Moneyline
The MARINERS (-160) are moderate favorites at home, but they’re worth the risk.
Seattle has been red-hot, and the pitching advantage is squarely in its favor with the All-Star Kirby against “Swervin” Cole Irvin. The M’s have registered 8 straight wins, and 10 victories in the past 11 outings overall. The Mariners have also won 4 consecutive wins with Kirby on the bump.
Run line/Against the spread
The MARINERS -1.5 (+125) are a solid play on the run line, but be careful. Seattle cashed on the run line in rather easy fashion in the series opener, and it has covered the run line as a favorite at a 6-1 clip across the past 7 outings.
On the flip side, the Orioles +1.5 (-155) failed to cover the run line as an underdog Friday, although Baltimore is 6-2 in the past 8 on the run line when not favored.
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Over/Under
OVER 8 (-105) is the lean, but go lightly.
While the O’s pitching has gone south, coughing up 7.0 runs per game across the past 4 outings, the M’s pitching has conceded just 7 total runs across the past 5 outings. The trends are all over the board in this one. The Over is 3-1 in 4 meetings this season between these 2 contenders.
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For more sports betting picks and tips, check out SportsbookWire.com and BetFTW.
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